ENSP模拟实验静态路由与BFD联动管理

Posted 2020-11-23 bjlssj

与动态路由协议不同，静态路由自身没有检测机制，当网络发生故障的时候，需要管理员介入。静态路由与BFD联动可为静态路由绑定BFD会话，利用BFD会话来检测静态路由所在链路的状态，具体过程如下：

• 当某条静态路由上的BFD会话检测到链路故障时，BFD会将故障上报系统，促使该路由失效，使该路由在IP路由表中不可见。

• 当某条静态路由上的BFD会话检测到故障的链路重新建立成功时，BFD会上报系统，激活该路由，使该路由重新出现在IP路由表中。

AR1配置：

[Huawei]vlan 10
[Huawei-vlan10]q
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 172.16.0.1 24
[Huawei-GigabitEthernet0/0/0]q
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 172.16.2.1 24
[Huawei-GigabitEthernet0/0/1]q
[Huawei]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip add 192.168.0.1 24

AR2

<Huawei>sys
[Huawei]iint g0/0/0
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 172.16.0.2 24
[Huawei-GigabitEthernet0/0/0]q
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 172.16.1.1 24
[Huawei-GigabitEthernet0/0/1]q
[Huawei]

 

AR3

<Huawei>sys
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 172.16.1.2 24
[Huawei-GigabitEthernet0/0/0]
[Huawei-GigabitEthernet0/0/0]q
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 172.16.2.2 24
[Huawei-GigabitEthernet0/0/1]q
[Huawei]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip add 192.168.1.1 24
[Huawei-GigabitEthernet0/0/2]q
[Huawei]

 

[AR1]bfd

[AR1] quit

[AR1] bfd tobeijing peer-ip 172.16.2.2

[AR1-bfd-session-tobeijing] discriminator local 10

[AR1-bfd-session-tobeijing] discriminator remote 20

[AR1-bfd-session-tobeijing]commit

[AR1-bfd-session-tobeijing]quit

[AR1]undo ip route-static 192.168.1.0 24 172.16.2.2

[AR1]ip route-static 192.168.1.0 24 172.16.2.2 track bfd-session tobeijing

 

[AR3]bfd

[AR3] quit

[AR3] bfd toshanghai peer-ip 172.16.2.1

[AR3-bfd-session-toshanghai] discriminator local 20

[AR3-bfd-session-toshanghai] discriminator remote 10

[AR3-bfd-session-toshanghai]commit

[AR3-bfd-session-toshanghai]quit

[AR3]undo ip route-static 192.168.0.0 24 172.16.2.1

[AR3]ip route-static 192.168.0.0 24 172.16.2.1 track bfd-session toshangha